package com.ruoyi.li.work.service.impl;

import com.ruoyi.common.annotation.DataScope;
import com.ruoyi.common.constant.UserConstants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.core.domain.TreeSelect;
import com.ruoyi.common.core.domain.entity.SysDept;
import com.ruoyi.common.core.domain.entity.SysRole;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.core.text.Convert;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.spring.SpringUtils;
import com.ruoyi.li.work.domain.vo.DeptVO;
import com.ruoyi.li.work.domain.vo.SysDeptSchoolVO;
import com.ruoyi.li.work.mapper.SysDeptMapper;
import com.ruoyi.li.work.mapper.SysRoleMapper;
import com.ruoyi.li.work.mapper.SysUserMapper;
import com.ruoyi.li.work.service.ISysDeptService;
import io.lettuce.core.ScriptOutputType;
import org.apache.commons.collections4.CollectionUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;

import static com.ruoyi.common.utils.PageUtils.startPage;

/**
 * 部门管理 服务实现
 *
 * @author ruoyi
 */
@Service
public class SysDeptServiceImpl implements ISysDeptService {
    @Autowired
    private SysDeptMapper deptMapper;

    @Autowired
    private SysRoleMapper roleMapper;
    @Autowired
    private SysUserMapper sysUserMapper;

    /**
     * 查询部门管理数据
     *
     * @param dept 部门信息
     * @return 部门信息集合
     */
    @Override
    @DataScope(deptAlias = "d")
    public List<SysDept> selectDeptList(SysDept dept) {
        startPage();
        List<SysDept> depts = deptMapper.selectDeptList(dept);
        return depts;
    }

    @Override
    public List<SysDept> selectDeptListVO(SysDept dept) {
        startPage();
        List<SysDept> depts = deptMapper.selectDeptListVO(dept);
        List<SysDept> deptList = deptMapper.selectTopIdAll(dept);
        if(null != dept.getDeptType()){  //加了一层非空判断
            if (dept.getDeptType() == 2) {
                for (SysDept deptVO : depts) {
                    for (SysDept sysDept : deptList) {
                        if (sysDept.getDeptId().equals(deptVO.getParentId())) {
                            deptVO.setParentTopName(sysDept.getDeptName());
                            deptVO.setParentTopNameId(sysDept.getDeptId());
                            break;
                        }
                    }
                }

            } else if (dept.getDeptType() == 3) {
                for (SysDept deptVO : depts) {
                    for (SysDept sysDept : deptList) {
                        if (sysDept.getDeptId().equals(deptVO.getParentId())) {
                            deptVO.setParentNameId(sysDept.getDeptId());
                            deptVO.setParentName(sysDept.getDeptName());
                            for (SysDept sysDept1 : deptList) {
                                if (sysDept.getParentId().equals(sysDept1.getDeptId())) {
                                    deptVO.setParentTopNameId(sysDept1.getDeptId());
                                    deptVO.setParentTopName(sysDept1.getDeptName());
                                    break;
                                }

                            }
                            break;
                        }
                    }
                }
            }
        }

        return depts;
    }

    /**
     * 查询部门树结构信息
     *
     * @param dept 部门信息
     * @return 部门树信息集合
     */
    @Override
    public List<TreeSelect> selectDeptTreeList(SysDept dept) {
        List<SysDept> depts = SpringUtils.getAopProxy(this).selectDeptList(dept);
        return buildDeptTreeSelect(depts);
    }

    /**
     * 构建前端所需要树结构
     * @param depts 部门列表
     * @return 树结构列表
     */
    @Override
    public List<SysDept> buildDeptTree(List<SysDept> depts) {
        List<SysDept> returnList = new ArrayList<SysDept>();
        List<Long> tempList = depts.stream().map(SysDept::getDeptId).collect(Collectors.toList());
        for (SysDept dept : depts) {
            // 如果是顶级节点, 遍历该父节点的所有子节点
            if (!tempList.contains(dept.getParentId())) {
                recursionFn(depts, dept);
                returnList.add(dept);
            }
        }
        if (returnList.isEmpty()) {
            returnList = depts;
        }
        return returnList;
    }

    /**
     * 构建前端所需要下拉树结构
     *
     * @param depts 部门列表
     * @return 下拉树结构列表
     */
    @Override
    public List<TreeSelect> buildDeptTreeSelect(List<SysDept> depts) {
        List<SysDept> deptTrees = buildDeptTree(depts);
        return deptTrees.stream().map(TreeSelect::new).collect(Collectors.toList());
    }

    /**
     * 根据角色ID查询部门树信息
     *
     * @param roleId 角色ID
     * @return 选中部门列表
     */
    @Override
    public List<Long> selectDeptListByRoleId(Long roleId) {
        SysRole role = roleMapper.selectRoleById(roleId);
        return deptMapper.selectDeptListByRoleId(roleId, role.isDeptCheckStrictly());
    }

    /**
     * 根据部门ID查询信息
     *
     * @param deptId 部门ID
     * @return 部门信息
     */
    @Override
    public SysDept selectDeptById(Long deptId) {
        return deptMapper.selectDeptById(deptId);
    }

    /**
     * 根据ID查询所有子部门（正常状态）
     *
     * @param deptId 部门ID
     * @return 子部门数
     */
    @Override
    public int selectNormalChildrenDeptById(Long deptId) {
        return deptMapper.selectNormalChildrenDeptById(deptId);
    }

    /**
     * 是否存在子节点
     *
     * @param deptId 部门ID
     * @return 结果
     */
    @Override
    public boolean hasChildByDeptId(Long deptId) {
        int result = deptMapper.hasChildByDeptId(deptId);
        return result > 0;
    }

    /**
     * 查询部门是否存在用户
     *
     * @param deptId 部门ID
     * @return 结果 true 存在 false 不存在
     */
    @Override
    public boolean checkDeptExistUser(Long deptId) {
        int result = deptMapper.checkDeptExistUser(deptId);
        return result > 0;
    }

    /**
     * 校验部门名称是否唯一
     *
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public boolean checkDeptNameUnique(SysDept dept) {
        LoginUser loginUser = SecurityUtils.getLoginUser();
//        SysUser sysUser = sysUserMapper.selectUserById(loginUser.getUserId());
        SysDept sysDept = new SysDept();
//        System.out.println(dept);
        List<SysDept> depts = deptMapper.checkDeptName(dept);
        System.out.println(depts);
        if (CollectionUtils.isEmpty(depts)) {
//            for (SysDept sysDept : depts) {
//                String[] split = sysDept.getAncestors().split(",");
//                for (String s : split) {
//                    if (sysUser.getSchoolId().toString().equals(s)) {
//                        return UserConstants.UNIQUE;
//                    }
//                }
//            }
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验部门是否有数据权限
     *
     * @param deptId 部门id
     */
    @Override
    public void checkDeptDataScope(Long deptId) {
        if (!SysUser.isAdmin(SecurityUtils.getUserId())) {
            SysDept dept = new SysDept();
            dept.setDeptId(deptId);
            List<SysDept> depts = SpringUtils.getAopProxy(this).selectDeptList(dept);
            if (StringUtils.isEmpty(depts)) {
                throw new ServiceException("没有权限访问部门数据！");
            }
        }
    }

    /**
     * 新增保存部门信息
     *
     * @param depts 部门信息
     * @return 结果
     */
    @Override
    @Transactional(rollbackFor = RuntimeException.class)
    public AjaxResult insertDept(List<SysDept> depts) {
        LoginUser loginUser = SecurityUtils.getLoginUser();
        int i1 = 0;
        int size = depts.size();
//        SysDept info = deptMapper.selectDeptById(dept.getParentId());
//         如果父节点不为正常状态,则不允许新增子节点
//        if (!UserConstants.DEPT_NORMAL.equals(info.getStatus()))
//        {
//            throw new ServiceException("部门停用，不允许新增");
//        }
//        dept.setAncestors(info.getAncestors() + "," + dept.getParentId());

        SysUser sysUser = sysUserMapper.selectUserById(loginUser.getUserId());
        for (SysDept dept : depts) {
            if (null != dept.getParentId() && !dept.getParentId().equals("")) {
                SysDept sysDept = deptMapper.selectDeptById(dept.getParentId());
                dept.setAncestors(sysDept.getAncestors() + "," + dept.getParentId());
            } else {
                SysDept sysDept = deptMapper.selectDeptById(sysUser.getSchoolId());
                dept.setAncestors(sysDept.getAncestors() + "," + sysUser.getSchoolId());
                dept.setParentId(sysUser.getSchoolId());
            }
            int i = deptMapper.insertDept(dept);
            if (i > 0) {
                i1++;
            }
        }
        if (size == i1) {
            return new AjaxResult(200, "新增成功");
        }
        throw new RuntimeException("新增失败");
    }

    /**
     * 修改保存部门信息
     *
     * @param dept 部门信息
     * @return 结果
     */
    @Override
    public int updateDept(SysDept dept) {
        SysDept newParentDept = deptMapper.selectDeptById(dept.getParentId());
        SysDept oldDept = deptMapper.selectDeptById(dept.getDeptId());
        if (StringUtils.isNotNull(newParentDept) && StringUtils.isNotNull(oldDept)) {
            String newAncestors = newParentDept.getAncestors() + "," + newParentDept.getDeptId();
            String oldAncestors = oldDept.getAncestors();
            dept.setAncestors(newAncestors);
            updateDeptChildren(dept.getDeptId(), newAncestors, oldAncestors);
        }
        int result = deptMapper.updateDept(dept);
        if (UserConstants.DEPT_NORMAL.equals(dept.getStatus()) && StringUtils.isNotEmpty(dept.getAncestors())
                && !StringUtils.equals("0", dept.getAncestors())) {
            // 如果该部门是启用状态，则启用该部门的所有上级部门
            updateParentDeptStatusNormal(dept);
        }
        return result;
    }

    @Override
    public AjaxResult deleteDeptById(Long[] deptIds) {
        int i = 0;
        int length = deptIds.length;
        for (Long deptId : deptIds) {
            int i1 = deptMapper.deleteDeptById(deptId);
            if (i1 > 0) {
                i++;
            }
        }
        if (length == i) {
            return new AjaxResult(200, "操作成功");
        }
        throw new RuntimeException("操作失败");
    }

    /**
     * 修改该部门的父级部门状态
     *
     * @param dept 当前部门
     */
    private void updateParentDeptStatusNormal(SysDept dept) {
        String ancestors = dept.getAncestors();
        Long[] deptIds = Convert.toLongArray(ancestors);
        deptMapper.updateDeptStatusNormal(deptIds);
    }

    /**
     * 修改子元素关系
     *
     * @param deptId       被修改的部门ID
     * @param newAncestors 新的父ID集合
     * @param oldAncestors 旧的父ID集合
     */
    public void updateDeptChildren(Long deptId, String newAncestors, String oldAncestors) {
        List<SysDept> children = deptMapper.selectChildrenDeptById(deptId);
        for (SysDept child : children) {
            child.setAncestors(child.getAncestors().replaceFirst(oldAncestors, newAncestors));
        }
        if (children.size() > 0) {
            deptMapper.updateDeptChildren(children);
        }
    }


    @Override
    public AjaxResult selectDepts() {
        List<SysDept> depts = deptMapper.selectDeps();
        return new AjaxResult(200, "操作成功", depts);
    }

    @Override
    public Long selectdeptName(String deptName) {

        Long deptId = deptMapper.selectdeptName(deptName);
        if (null == deptId) {
            LoginUser loginUser = SecurityUtils.getLoginUser();
            SysDept sysDept = new SysDept();
            sysDept.setDeptName(deptName);
            sysDept.setAncestors("0");
            sysDept.setLeader(loginUser.getUsername());
            int i = deptMapper.insertDept(sysDept);
            deptId = deptMapper.selectdeptName(deptName);
        }
        return deptId;
    }

    @Override
    public AjaxResult deptSchool() {
        List<SysDept> deptSchool = deptMapper.deptSchool();
        return new AjaxResult(200, "操作成功", deptSchool);
    }

    @Override
    public AjaxResult addSchool(List<SysDeptSchoolVO> depts) {
        for (SysDeptSchoolVO dept : depts) {
            deptMapper.addSchool(dept.getDeptName());
        }
        return new AjaxResult(200, "操作成功");
    }

    @Override
    public List<SysDept> selectName(String deptName) {
        List<SysDept> depts = deptMapper.selectName(deptName);
        return depts;
    }

    @Override
    public AjaxResult deptEnterprise() {
        List<SysDept> deptEnterprise = deptMapper.deptEnterprise();
        return new AjaxResult(200, "操作成功", deptEnterprise);
    }

    /**
     * 递归列表
     */
    private void recursionFn(List<SysDept> list, SysDept t) {
        // 得到子节点列表
        List<SysDept> childList = getChildList(list, t);
        t.setChildren(childList);
        for (SysDept tChild : childList) {
            if (hasChild(list, tChild)) {
                recursionFn(list, tChild);
            }
        }
    }

    /**
     * 得到子节点列表
     */
    private List<SysDept> getChildList(List<SysDept> list, SysDept t) {
        List<SysDept> tlist = new ArrayList<SysDept>();
        Iterator<SysDept> it = list.iterator();
        while (it.hasNext()) {
            SysDept n = (SysDept) it.next();
            if (StringUtils.isNotNull(n.getParentId()) && n.getParentId().longValue() == t.getDeptId().longValue()) {
                tlist.add(n);
            }
        }
        return tlist;
    }

    /**
     * 判断是否有子节点
     */
    private boolean hasChild(List<SysDept> list, SysDept t) {
        return getChildList(list, t).size() > 0;
    }
}
